Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ui/views/examples/tree_view_example.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/examples/tree_view_example.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/views/controls/button/label_button.h"
 #include "ui/views/controls/menu/menu_model_adapter.h"
 #include "ui/views/controls/menu/menu_runner.h"
@@ skipping 105 matching lines @@
     remove_->SetEnabled(false);
   }
 }
 
 bool TreeViewExample::CanEdit(TreeView* tree_view,
                               ui::TreeModelNode* node) {
   return true;
 }
 
 void TreeViewExample::ShowContextMenuForView(View* source,
-                                             const gfx::Point& point) {
+                                             const gfx::Point& point,
+                                             ui::MenuSourceType source_type) {
   ui::SimpleMenuModel context_menu_model(this);
   context_menu_model.AddItem(ID_EDIT, ASCIIToUTF16("Edit"));
   context_menu_model.AddItem(ID_REMOVE, ASCIIToUTF16("Remove"));
   context_menu_model.AddItem(ID_ADD, ASCIIToUTF16("Add"));
   context_menu_runner_.reset(new MenuRunner(&context_menu_model));
   if (context_menu_runner_->RunMenuAt(source->GetWidget(), NULL,
-      gfx::Rect(point, gfx::Size()), MenuItemView::TOPLEFT, 0) ==
+      gfx::Rect(point, gfx::Size()), MenuItemView::TOPLEFT, source_type, 0) ==
       MenuRunner::MENU_DELETED)
     return;
 }
 
 bool TreeViewExample::IsCommandIdChecked(int command_id) const {
   return false;
 }
 
 bool TreeViewExample::IsCommandIdEnabled(int command_id) const {
   return const_cast<TreeViewExample*>(this)->IsCommandIdEnabled(command_id);
@@ skipping 18 matching lines @@
     case ID_ADD:
       AddNewNode();
       break;
     default:
       NOTREACHED();
   }
 }
 
 }  // namespace examples
 }  // namespace views